It's not B so I'm thinking it is D.
Find molar mass of MgCl2 so M=<span>95.211 g/mol
N=m/M
N=332/95.2
N=3.487
dont forget to round your sig figs </span>
Chemistry is a very hard subject in my opinion
Answer:
I think it's C but I'm atlessy 60% sure :]
Use the formula pv=nRt and you will get the answer
